Just please help me!!!!!

Just Please Help Me!!!!!

Answers

Answer 1

Answer:

n= 5/3 or 1.67

Step-by-step explanation:

9n^2 -9 =16

9n^2 = 16 + 9

9n^2 = 25

n^2 =25/9

n^2 =25/9

[tex]\sqrt{n^2} = \sqrt{\frac{25}{9} }[/tex]

n= 5/3 or 1.67

Answer 2

[tex]~~~~~~9n^2 -9 = 16\\\\\implies 9(n^2 -1) = 16\\\\\implies n^2 -1 = \dfrac{16}9\\\\\implies n^2 = \dfrac{16}{9}+1\\\\\implies n^2 = \dfrac{25}{9}\\\\\implies n=\pm\sqrt{\dfrac{25}{9}}\\\\\implies n= \pm\dfrac 53\\\\\implies n = \pm1.67[/tex]


Related Questions

Can someone please help me with 6-10! I will give 100 points!!

Answers

Explanation:

6. A Linear function can be written in the form of f(x) = mx + b

7. In the form of f(x) = mx + b, the y intercept is b

8. The graph x = c is a vertical line with x intercept (c,0)

9. The graph y = c  is a horizontal line with y intercept (0, c)

10. To find x intercept, let the y = 0, and solve for x

Answer:

See below ~

Step-by-step explanation:

Solutions :

===============================================================

6. A(n) linear function can be written in the form f(x) = mx + b.

===============================================================

7. In the form f(x) = mx + b, the y-intercept is b.

===============================================================

8. The graph of x = c is a vertical line with x-intercept (c, 0).

===============================================================

9. The graph of y = c is a horizontal line with y-intercept (0, c).

===============================================================

10. To find an x-intercept, let y = 0 and solve for x.

What is the surface area?
5 m
7 m
4 m
140 m squared
16 m squared
166 m squared
156 m squared

Answers

Answer:

c. 166

Step-by-step explanation:

area = l x w

surface area = area

four times the quotient of 3 divided by 4

Answers

Step-by-step explanation:

Step 1:  Convert words into an expression

Four times the quotient of 3 divide by 4

We know that we are going to be multiplying 4 by something because in the statement we have four times.  Reading further we also know that we are going to be dividing 4 from 3 which means that we will have 3/4.  Finally, we see that we multiply our 3/4 by 4 which gives us our final solution.

[tex]4 * (3 / 4)[/tex]

If we want to solve it the 4's would just cancel and we would be left with 3.

Solution

3

Explanation:

You would start by dividing 3 by 4. Then multiply [tex]\frac{3}{4}[/tex] and 4. The 4s would cancel out leaving you with 3.

[tex]\frac{3}{4}[/tex] × [tex]4=3[/tex]

W over 5 =3 what does w equal

Answers

Answer:

1.667

Step-by-step explanation. Step by Step SolutionRearrange:Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :                      5/w-(3)=0 Step by step solution :STEP 1: 5

Simplify —

w

Equation at the end of step 1: 5

— - 3 = 0

w

STEP 2:Rewriting the whole as an Equivalent Fraction  2.1   Subtracting a whole from a fraction Rewrite the whole as a fraction using  w  as the denominator : 3 3 • w

3 = — = —————

1 w

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominatorAdding fractions that have a common denominator : 2.2       Adding up the two equivalent fractions Add the two equivalent fractions which now have a common denominatorCombine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible: 5 - (3 • w) 5 - 3w

——————————— = ——————

w w

Equation at the end of step 2: 5 - 3w

—————— = 0

w

STEP 3:When a fraction equals zero : 3.1    When a fraction equals zero ...Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.Here's how: 5-3w

———— • w = 0 • w

w

Now, on the left hand side, the  w  cancels out the denominator, while, on the right hand side, zero times anything is still zero.The equation now takes the shape :   5-3w  = 0Solving a Single Variable Equation: 3.2      Solve  :    -3w+5 = 0  Subtract  5  from both sides of the equation :                       -3w = -5 Multiply both sides of the equation by (-1) :  3w = 5 Divide both sides of the equation by 3:                     w = 5/3 = 1.667 One solution was found : w = 5/3 = 1.667                  

if the ratio of nonfiction to fiction books on a bookshelf is 2 to 3. If the total number of books is 30, how many of them were nonfiction

Answers

Answer: 20

Step-by-step explanation: imagine the books in 10's cuz 30/3=10 and 2 of those tens out of the group of three are nonfiction, so that makes 20 out of 30

Answer: 20


^^^^^^^^^^

Eric, Kim, and Ed are trading downloaded songs. First, Eric gives Kim half of his songs. Then Kim gives one-third of her songs, which is 6 songs, to Ed. Finally, Ed gives Eric 2 songs. Because everyone end up with 12 songs, how many songs did Kim start with? How many songs did Eric start with?

Answers

The number of songs Kim started with are 18songs while the number of songs Eric started with are 36 songs.

Calculation of total songs owned by each trader

Firstly, Kim = 1/2 of Eric's

Ed = 1/3 of Kim= 6 songs

Eric = 2 songs

Total songs by the whole traders is = 12 ×3 = 36songs

To find the total songs for Kim,

If Kim gave Ed, 1/3 of her songs =6 , then her whole song is 6×3 = 18songs.

But she gave out 6 to Ed so 12 songs will remain.

To find total songs by Eric,

If 18 songs received by Kim is half of Eric songs therefore, 18×2 = 36

But half was given to Kim therefore 18 songs is remaining for Eric

To find total songs by Ed,

Ed received 6songs from kim and gave out 2, there, 4 songs is remaining for Ed.

Therefore the number of songs Kim started with are 18songs while the number of songs Eric started with are 36 songs.

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A function is given. h(t) = −t + 6/5 ; t = −3, t = 1

Answers

Answer:

h(-3) = 4.2 or 21/5

h(1) = 0.2 or 1/5

Step-by-step explanation:

Plug in -3 for t.

-(-3) + 6/5 = 4.2 or 21/5

Plug in 1 for t.

-(1) + 6/5 = 0.2 or 1/5


What is the area, measured in square centimeters, of the green shape
pictured below? Do not include units in your answer.

Answers

The answer is 6

In order to find the area, we need to use L x W

given that:

3(L) x 2(W) = 6 square centimeters

the formula for the circumference of a circl is c = 2 nr determine the circumference when the radius r is 10 cm

Answers

Answer:

20π cm or approximately 62.8 cm

Step-by-step explanation:

» Concepts

The circumference of a circle is the distance, or perimeter, around a circle in a certain unit such as centimeters. The formula to find the circumference, as stated, it 2πr, where r = radius.

» Application

In this case, we're asked to find the circumference of the circle using the formula 2πr. We're also given the radius as 10 cm.

» Solving

[tex]2(10)\pi[/tex] [tex]20\pi[/tex] 20π cm

or

[tex]2(3.14)(10)[/tex] [tex](6.28)(10)[/tex] [tex]62.8[/tex] 62.8 cm

Answer:

c=2nr

but r=10 and n=3,14

c=2(3,14)(10)

c=62,8

Circle p has radius 8. Points Q and R lie on circle P, and the length of arc QR is 4pie. What is measure angle QPR in radians?

Answers

In the circle the measure of angle QPR in radians is π/4.

What is a circle?

A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle has rotational symmetry around the centre.

The length of the arc QR is 4π, which is 1/2 of the circumference of the circle P.

Therefore, the circumference of the circle is -

2πr = 2π(8) = 16π

The angle subtended by the arc QR at the center of the circle is therefore -

θ = arc length / radius

θ = (4π) / 8

θ = π/2

Now, consider the triangle QPR.

The angle QPR at the center of the circle is equal to twice the angle subtended by the arc QR at any point on the circumference of the circle.

Therefore -

2∠QPR = θ = π/2

Solving for ∠QPR, we get -

∠QPR = (π/2) / 2

∠QPR = π/4

Therefore, the measure QPR is π/4.

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Hello
Please what’s the explanation to get the answer (2+2) ² (2+3)³

Answers

Answer:

141

Step-by-step explanation:

Hello

Please what’s the explanation to get the answer (2+2) ² (2+3)³

we use PEMDAS

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

(2 + 2)² + (2 + 3)³ =

4² + 5³ =

16 + 125 =

141

55. The sum of an infinite geometric series is five times the value of the first term. What is the common ratio of the series?

Answers

Answer:

r = 4/5

Step-by-step explanation:

Formula

Sum of an infinite geometric series = a / (1 - r)

Givens

Sum = 5*a

a = a

r = ?

Solution

5a = a/(1 - r)                   Divide both sides by a

5a/a = a / (a * (1 - r)       The a's on the right cancel

5 = 1 / (1 - r)                    Multiply both sides by 1 - r

5*(1 - r) = 1*(1 - r)/(1 - r)   The 1 - r s on the right cancel

5*(1 - r) = 1                     Remove the brackets.

5 - 5r = 1                        Subtract 5 from both sides

5-5 - 5r = 1 - 5               Combine

-5r = - 4                          Divide by - 5

r = 4/5  

What is the range for this set of data?
7, 15, 12
3
5
8
1

Answers

8 since the range is the highest number minus the lowest.

Answer:

The range is (D) or '12'

Step-by-step explanation:

Which statement comparing short- and long-term investments is true?
O A.
Both offer a high degree of liquidity.
• B.
Both have a minimum maturity period of five years.
O C.
Both include stocks, bonds, and cash.
D.
Both have the same risk level and potential of returns.

Answers

The statement which is true comparing short- and long-term investments is both include stocks, bonds, and cash.

What is investments?

Investment is the amount which one is invested to secure it or to generate the income with it.

The investment done to earn profit are of two types:

Short-term investments- The short term investment is the investment in which the time period of investing money is less. In this the profit earn is less.Long-term investments-The short term investment is the investment in which the time period of investing money is more. In this, the profit earn is more than the short-term investment.

The short- and long-term investment both include stocks, bonds, and cash.

Hence, the statement which is true comparing short- and long-term investments is both include stocks, bonds, and cash.

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PLEASE HELP ME ANSWER THIS FAST

Answers

Answer:

65 square yards

Step-by-step explanation:

5x5=25

5x4=20

5x4=20

20+20+25= 65

Ramesh invests rs12800 for three years at the rate of 10% per annum compound interest Find (I) the sum due to Ramesh at the end of the first year (ii) the interest he earns for the second year (iii) the total amount due to him at the end of three year​

Answers

Answer:

1)  14080

2) 1408

3) 17036.80

Step-by-step explanation:

It is given that 

Principal= 12800

Rate of interest =10% p.a

(i) We know that Interest for the first year=

(12800×10×1)/100

 = 1280

So the sum due at the end of first year= 12800+1280

   = 14080

                                                           

(ii) Principal for second year = 14080

So the interest for the second year

=(14080×10×1)/100

=1408

                                                     

iii) We know that Sum due at the end of second year

= 14080+1408

=15488

                                                         

Here

Principal for third year= 15488

Interest for the third year= (15488×10×1)/100

                                      =1548.80

So the total amount due to him at the end of third year= 15488+1548.80

                                       = 17036.80

Which sampling technique is MOST LIKELY being used? Data is collected from every 20th student on a list of the entire school population

Answers

Answer:

Systematic Sampling

Step-by-step explanation:

Researchers use the systematic sampling method to choose the sample numbers of population at regular intervals.

USA  TP Test  Got it Right

I need help with question 10

Answers

Answer:

C

Step-by-step explanation:

pythagorean theorem: a²+b² = c²

area of square = length²

c = side opposite right angle = length of square Z

thus, area of square Z = c²

area of square X = a² (or b², it doesn't matter)

area of square Y = b² (or a²)

a² + b² = c²

region x + region y = region z

Supposea triangle has sides 3, 4, and5. Which of the following must be true? OA The triangle in question is not a right triangle. OB. The triangle in question is a right triangle. Oc.The triangle in question may or may not be a right triangle.​

Answers

Answer:  B. The triangle in question is a right triangle.

Reason:

The sides are

a = 3b = 4c = 5

Plug them into the equation below and simplify both sides

[tex]a^2+b^2 = c^2\\\\3^2+4^2 = 5^2\\\\9+16 = 25\\\\25 = 25\\\\[/tex]

Therefore, we have a right triangle. For more information, check out the converse of the pythagorean theorem.

Donna borrowed $3000 from a bank for 2 years and was charged simple interest. The total interest that she paid on the loan was $120 . As a percentage, what was the annual interest rate of her loan?

Answers

Answer:

I = PRT / 100

P=3000R=?T = 2I = 120

R = 100I/PT

R = 12000/6000

R = 2%

Without a calculator how would you solve this?

Answers

Answer:

the largest number that is less than (2+√3)^6 is 2701

Step-by-step explanation:

[tex]\bigstar \ (2+\sqrt{3})^6= \\\\C{}^{0}_{6}2^{6}+C{}^{1}_{6}2^{5}\sqrt{3}^1+C{}^{2}_{6}2^{4}\sqrt{3}^2+C{}^{3}_{6}2^{3}\sqrt{3}^3+C{}^{4}_{6}2^{2}\sqrt{3}^4+C{}^{5}_{6}2^{1}\sqrt{3}^5+C{}^{6}_{6}\sqrt{3}^6[/tex]

[tex]=64+192\sqrt{3}+720 +480\sqrt{3} +540+108\sqrt{3} +27\\=1351+780\sqrt{3}[/tex]

[tex]\bigstar\ (2-\sqrt{3} )^6 =\\\\1351-780\sqrt{3}[/tex]

[tex]\bigstar\ \bigstar\ (2+\sqrt{3} )^6+(2-\sqrt{3} )^6 =\\\\1351+780\sqrt{3}+1351-780\sqrt{3}[/tex]

[tex]\Longrightarrow(2+\sqrt{3} )^6+(2-\sqrt{3} )^6 =2702[/tex]

[tex]\Longrightarrow(2+\sqrt{3} )^6 =2702-(2-\sqrt{3} )^6[/tex]

[tex]0 < \left( 2-\sqrt{3} \right) < 1 \Longrightarrow 0 < \left( 2-\sqrt{3} \right)^{6} < 1 \Longrightarrow-1 < \left( 2-\sqrt{3} \right)^{6} < 0[/tex]

[tex]\Longrightarrow2702-1 < 2702-\left( 2-\sqrt{3} \right)^{6} < 2702+0[/tex]

[tex]\Longrightarrow 2701 < \left( 2+\sqrt{3} \right)^{6} < 2702[/tex]

-3x° (2x7 - 4x + 1) multiply through polynomial

Answers

Answer:

-6x⁷ + 12x − 3

Step-by-step explanation:

Method 1 :

[tex]-3x^0\ (2x^7-4x+1)[/tex]

[tex]= (-3x^0)\times 2x^7-(-3x^0)\times4x+(-3x^0)\times1[/tex]

[tex]= (-3x^0)\times 2x^7+(3x^0)\times4x+(-3x^0)\times1[/tex]

[tex]=-6x^{0+7}+12x^{0+1}-3x^0[/tex]

[tex]=-6x^{7}+12x^{1}-3x^0[/tex]

[tex]=-6x^{7}+12x-3[/tex]

Method 2 :

Note : x⁰ = 1

[tex]-3x^0\ (2x^7-4x+1)[/tex]

[tex]=-3\ (2x^7-4x+1)[/tex]

[tex]=-3\times2x^7-(-3)\times4x+(-3)\times1[/tex]

[tex]=-6x^7+12x-3[/tex]

find the distance between the two points~
A ( 7 , 4 ) and B ( 3 , 2 )


thankyou!​

Answers

Answer:

AB = [tex]\sqrt{20}[/tex]

Step-by-step explanation:

calculate the distance using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = B (3, 2 ) and (x₂, y₂ ) = A (7, 4 )

AB = [tex]\sqrt{(7-3)^2+(4-2)^2}[/tex]

     = [tex]\sqrt{4^2+2^2}[/tex]

     = [tex]\sqrt{16+4}[/tex]

     = [tex]\sqrt{20}[/tex]

     ≈ 4.47 ( to 2 dec. places )

Answer:

[tex]distance = \sqrt{(3 - 7) ^{2} } + (2 - 4) ^{2} \\ = \: \: \sqrt{16} + 4 \\ \\ = \: \: \: \: 2 \sqrt{5} [/tex]

165
The distances between some planets are given below.
Planet Q
Planet Q is 3.5 10 km from planet P.
Planet R is 1.2 x 10 km from planet P.
Planet R
Planet P
Work out the shortest distance between
planet Q and planet R.
Give your answer in standard form.

Answers

I don’t know what I was thinking about to do this weekend or not so I don’t

Side AB is opposite which angle in triangle ABC?

Answers

Answer:

∠ACB

Step-by-step explanation:

we have three options for angles in triangle ABC:

- ∠CAB

- ∠ABC

- ∠ACB

∠ACB is the only angle out of the three given that doesn't directly touch side AB, so this must be our answer

How much time will have elapsed from 2:37 to 3:19

Answers

42 is the answer I’m pretty sure because 60-37 is 23 and 23 plus 19 is 42

Answer:

42min would have elapsed

Step-by-step explanation:

2:37-2:40 (3 min)

2:40-3:00 (20 min)

3:00-3:19 (19 min)

A person who searches for natural resources is a
A. prospector
B. detector
C. surveyor
D. researcher

Answers

A. Prospector I believe

The bases of a right prism are rhombii, each with area A = 44cm2. The height of the prism is h = 2.3dm. Find the volume, V, of the prism.

Answers

Step-by-step explanation:

did you make a typo, or do you actually mean dm ?

1 dm = 10 cm

in any case, in a right prism object it does not matter what shape the bases are.

the volume is always

base area × height

so, if you did not make a typo, then

height = 2.3 dm = 23 cm

and the volume of the prism is

44 × 23 = 1012 cm³

but if you did make a typo and

height = 2.3 cm,

then the volume of the prism is

44 × 2.3 = 101.2 cm³

Answer:

1012 centimeters cubed

Step-by-step explanation:

Volume=base x length x width

height = 2.3 dm, which is 23 cm, so the volume of the prism would be 44 × 23 = 1012 cm cubed

A cereal box is 9 1 2 inches long, 5 1 2 inches wide, and 12 inches high. What is the volume of the box?

Answers

Answer

5603328

Step by step explanation:

Hey! Rmemeber length x width x height!

Multiply: 9 1 2 x 5 1 2 x 12

Answer= 5603328

And thats it! If it is wrong you must have put the wrong numbers in, I dont get why their spaces though....

Have a good day!!

isaac has a balance of $28.17 in his utilities budget at the end of march. he budgets 16% of his $1,854.14 monthly net income each month. how much are the available funds for april?

Answers

The available fund for April is $324.83 if the Isaac has a balance of $28.17 in his utilities budget at the end of March.

What is expenses?

It is defined as the money spends on the utility, the amount of money is required to buy something in other words it is the outflow of money from the solely earners income or the money incurred by any organization.

We have:

Current balance = $28.17

16% of his $1,854.14

= (1854.14×16)/100

= $296.66

The available fund for April  = 296.66 + 28.17 = $324.83

Thus, the available fund for April is $324.83 if the Isaac has a balance of $28.17 in his utilities budget at the end of March.

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